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Finding the Fourth Proportional to 1,772.28, 2,657.75 and 602.09

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Solution

The fourth proportional to 1,772.28, 2,657.75 and 602.09 is: 902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.28 : 2,657.75 = 602.09 : x
  2. Step 2: Convert to fraction form
    1,772.28/2,657.75 = 602.09/x
  3. Step 3: Cross multiply
    1,772.28x = 2,657.75 × 602.09
  4. Step 4: Simplify right side
    1,772.28x = 1,600,188.40
  5. Step 5: Solve for x
    x = 1,600,188.40/1,772.28
  6. Step 6: Final answer
    x = 902.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.